499307 (2009 WC52)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5541735048 ± 2.78e-08
Semi-major axis (a)2.5216824044 AU ± 4.05e-09
Inclination (i)7.15379425° ± 2.64e-06
Long. of Asc. Node (Ω)178.63347776° ± 1.94e-05
Arg. of Perihelion (ω)149.27769926° ± 2.02e-05
Mean Anomaly (M)28.32506445° ± 2.74e-06
Mean Motion (n)0.2461368816°/day ± 5.94e-10
Perihelion dist (q)1.12423283 AU ± 7.02e-08
Aphelion dist (Q)3.91913198 AU ± 7.04e-08
Orbital Period4.00438275 yr ± 9.66e-09
Physical Parameters
H (abs. magnitude)18.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.263″
Uncertainty0
Orbit TypeAmor
MOID0.127084 AU
Observations Used503
Oppositions12
Arc Total2009-2025
First Observation Used2009-11-22
Last Observation Used2025-12-25
Observations (569)
Date Type RA Dec Mag Band Observatory
2013-11-03 14:40:23 C 04 32 18.774 +08 49 50.37 L F51
2013-11-06 10:04:48 C 04 28 27.777 +08 28 25.12 L F51
2013-11-06 10:24:32 C 04 28 26.565 +08 28 19.11 L F51
2013-11-06 10:44:17 C 04 28 25.352 +08 28 13.13 L F51
2013-11-06 11:04:10 C 04 28 24.127 +08 28 07.16 L F51
2013-11-27 11:07:29 C 03 59 10.295 +06 51 00.14 L F51
2013-11-27 11:27:14 C 03 59 09.226 +06 50 58.66 L F51
2013-11-27 11:45:50 C 03 59 08.229 +06 50 57.10 L F51
2013-11-28 09:35:39 C 03 58 02.322 +06 49 29.29 L F51
2013-11-28 09:54:21 C 03 58 01.331 +06 49 28.11 L F51
2013-11-28 10:13:03 C 03 58 00.341 +06 49 26.94 L F51
2013-11-28 10:31:46 C 03 57 59.356 +06 49 25.85 L F51
2017-05-01 11:03:30 C 19 46 29.04 -09 12 28.9 o 291
2017-05-01 11:05:45 C 19 46 29.32 -09 12 27.9 o 291
2017-05-01 11:08:01 C 19 46 29.57 -09 12 25.8 o 291
2017-05-13 09:02:00 C 20 24 08.86 -05 35 58.1 t 705
2017-05-13 09:03:27 C 20 24 08.96 -05 35 56.7 t 705
2017-05-29 10:21:39 C 21 22 06.98 +00 33 12.8 q G96
2017-05-29 10:27:36 C 21 22 07.94 +00 33 19.0 q G96
2017-05-29 10:33:34 C 21 22 08.89 +00 33 25.2 q G96
2017-05-29 10:39:31 C 21 22 09.85 +00 33 31.5 q G96
2017-06-20 00:58:57 C 22 55 58.40 +10 14 03.6 q A17
2017-06-20 01:15:53 C 22 56 01.72 +10 14 22.3 q A17
2017-06-20 01:32:49 C 22 56 04.99 +10 14 41.0 q A17
2017-07-18 08:39:42 S 01 14 26.70 +19 32 27.3 L C51
2017-07-18 11:48:13 S 01 15 03.60 +19 33 52.2 L C51
2017-07-18 18:05:24 S 01 16 17.72 +19 36 38.2 L C51
2017-07-19 00:22:24 S 01 17 31.63 +19 39 19.2 L C51
2017-07-19 03:31:05 S 01 18 08.47 +19 40 41.6 L C51
2017-07-23 14:22:07 S 01 38 37.822 +20 19 09.59 L C51
2017-07-24 18:38:59 S 01 43 54.523 +20 27 06.16 L C51
2017-07-24 21:47:40 S 01 44 29.354 +20 27 59.00 L C51
2017-07-25 10:21:51 S 01 46 48.763 +20 31 09.80 L C51
2017-07-26 13:04:40 S 01 51 42.022 +20 37 22.44 L C51
2017-07-27 04:47:21 S 01 54 32.868 +20 40 38.24 L C51
2017-07-28 07:30:09 S 01 59 20.17 +20 45 40.3 L C51
2017-07-28 10:38:50 S 01 59 53.69 +20 46 10.7 L C51
2017-07-28 12:13:06 S 02 00 10.58 +20 46 27.3 L C51
2017-07-28 18:30:16 S 02 01 17.48 +20 47 28.7 L C51
2017-07-28 23:13:01 S 02 02 07.51 +20 48 15.0 L C51
2017-07-29 00:47:17 S 02 02 24.30 +20 48 27.1 L C51
2017-07-29 05:30:13 S 02 03 13.95 +20 49 11.5 L C51
2017-07-29 07:04:28 S 02 03 30.41 +20 49 24.5 L C51
2017-07-29 14:55:54 S 02 04 53.38 +20 50 33.0 L C51
2017-07-29 16:30:09 S 02 05 09.90 +20 50 45.8 L C51
2017-07-30 00:21:35 S 02 06 32.20 +20 51 48.1 L C51
2017-07-30 01:55:50 S 02 06 48.43 +20 52 01.0 L C51
2017-07-30 05:04:20 S 02 07 21.34 +20 52 24.3 L C51
2017-07-30 08:12:50 S 02 07 54.21 +20 52 49.1 L C51
2017-07-30 08:13:01 S 02 07 54.24 +20 52 48.8 L C51